User:Kepler-1229b/Kepler-18c
| Discovery Transit | |
|---|---|
| Orbital characteristics[1] | |
| 0.0752±0.0011 AU | |
| Inclination | 87.68±0.22° |
| Semi-amplitude | 5.1±1.9 m/s |
| Physical characteristics[1] | |
Mean radius | 5.49±0.26 R🜨 |
| Mass | 17.3±1.9 M🜨 |
Mean density | 0.59±0.07 g/cm3 |
Kepler-18c is an
transit method using the Kepler space telescope
.
Kepler-18c is a hot Neptune with a mass of 17.3 Earth masses, with a radius of 5.5 Earth radii and a low density of 0.6 g/cm-3.
It orbits in slightly more than 7.6 days at a distance of 0.075 AU, hence a surface equilibrium temperature of 635 °C.
References
- ^ ISSN 0067-0049.
Category:Hot Neptunes Category:Transiting exoplanets Category:Exoplanets discovered in 2011 Category:Cygnus (constellation)